**To be clear I did not design this file, it was given to me my FYSETC for my purchase. I suspect it isnt their file either.** If you buy a clone MMU2, you will find they most likely dont have the brass nut. Aliexpress clones done sell the full hardwre kit for clone reasons. It would open them up to litigation. Here is the MMU and Extruder file to DIRECTLY connect the M5 thread on the PFTE adapter to the MMU and Extruder head. Follow up pictures will hopefully show glory.